A selenium atom has six valence electrons. Do you think it will lose six electrons or gain two electrons to obtain an octet in its outermost electron shell?
An iodine atom has seven valence electrons. Do you think it will lose seven electrons or gain one electron to obtain an octet in its outermost electron shell? The octet rule is the concept that atoms tend to have eight electrons in their valence electron shell. Ionic bonds are formed by the attraction between oppositely charged ions.
Positive charges repel each other, so an ionic compound is not likely between two positively charged ions. Selenium is more likely to gain two electrons. Iodine is more likely to gain one electron.
Learning Objectives Define the octet rule. Describe how ionic bonds are formed. Solution Although either event is possible, a sodium atom is more likely to lose its single valence electron. Answer The process that involves less number of electrons is more favorable. Key Takeaways Atoms have a tendency to have eight electrons in their valence shell. The attraction of oppositely charged ions is what makes ionic bonds. Exercises 1. What is the octet rule?
How are ionic bonds formed? Why is an ionic compound unlikely to consist of two positively charged ions? Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Bonding of Lithium and Argon Ask Question. Asked 4 years, 7 months ago. Active 4 years, 5 months ago. Viewed 3k times. Improve this question. Add a comment. Active Oldest Votes.
Anyone who says they have done so is a LiAr ; Also, since Lithium is highly reactive and flammable and Argon is used in neon, I would not suggest trying to combine these two without a proper location and gear. Improve this answer. Nathanael Nathanael 11 1 1 bronze badge. What happens to electrons in a covalent bond?
Covalent bonding occurs when pairs of electrons are shared by atoms. Atoms will covalently bond with other atoms in order to gain more stability, which is gained by forming a full electron shell. By sharing their outer most valence electrons, atoms can fill up their outer electron shell and gain stability.
Is oxygen covalent or ionic? Atoms that share electrons in a chemical bond have covalent bonds. An oxygen molecule O2 is a good example of a molecule with a covalent bond. Ionic bonds occur when electrons are donated from one atom to another. Can metals have covalent bonds? Types of Bonds. Ionic bonds can form between nonmetals and metals, while covalent bonds form when electrons are shared between two nonmetals. What happens to electrons in an ionic bond? Ionic bonding is the complete transfer of valence electron s between atoms.
It is a type of chemical bond that generates two oppositely charged ions. In ionic bonds, the metal loses electrons to become a positively charged cation, whereas the nonmetal accepts those electrons to become a negatively charged anion.
Can sodium form a covalent bond? As we have seen, there are two types of bonds: ionic bonds and covalent bonds. For example, sodium Na , a metal, and chloride Cl , a nonmetal, form an ionic bond to make NaCl.
In a covalent bond, the atoms bond by sharing electrons. Covalent bonds usually occur between nonmetals. Does argon have a full outer shell? Just like neon Ne and helium He , argon Ar usually floats around all by itself. It is non-reactive because the shells are full.
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